Severing device



Jim@ Z2 E92@ A M., BAT@ SEVERING DEVICE Filed Feb. 8, 1924 invento/LAde/mer MBates. @y mmmfwmfyzm the lower` end of the cutter-carrier.guard 31 has roughly V-shaped notches 32 ting wheel.

lljatented June 22, 1926..

unito s Price.

.AIDELMER IM. BATES, OF CHICAGO, ILLINOIS, ASSIGNO TO BATES 'VALVE BAGCOM- PANY, 0F CHICAGO, ILLINOIS, A CRCEORATION 0F WEST VIRGINIA.

SEVERIN G DEVICE.

Application led February 1924. Serial No. 891,431.

My invention relates to a severing device, and more particularly to adevice adapted to sever the connecting seam and tape between the tops ofsuccessive filled bags which have been closed by sewing a continuousseam across their tops.

ln the accompanying drawings illustrating one form of my invention,Figure 1 is a side view of the apparatus. Fi 2 is a rear view, and Fig.3 is a partial p an view.

l show a portion ot the framework of a bag closing machine comprisingside bars and 11, between which there is a support or slideway 12 ot anysuitable form upon which closed bags 13 and 14 may be slid. F or thispurpose I provide endless chains 15 and 16, connected by a U-shapedpusher bars, two ot which, 17 and 18, are shown. lll`hese pusher barsare adaptedto receive filled bags and push them along the slideway inproperly spaced relation so that their upper ends may be closed by acontinuous seam 19. In the drawings the seam is disclosed as beingreinforced by tapes 20 and 21, one on each side of the bag tops. rlthesefeatures form no part ot my present invent-ion and are disclosed merelyto indicate the application of my severing device.

Supported from the side bar 11 there is a bracket 25, having an arm 26overhanging the slideway. A swinging cutter-carrier 27 is pivoted at 28to the overhanging arm. A cutting wheel/29 is journaled at 30 nea 'and33 in its opposite sides. rl`hese notches are arranged at the properdistance above the slideway to receive the connecting seam and tapebetween the bags. The lower part ot the guard 31 forms a finger 34,which is adapted to pass between the bags.

T he cutter is driven by a motor 35, which is mounted on the arm 26, andis connected by a belt 36 to a pulley 37, fixed to the cutl prefer tomount the motor so that the axis of the driving pulley is directly overthe pivot 28, which in turn is directly over the path of the seam 19.

lThe carrier 27 has two arms 38 and 39, connected by links 40 and 41 tolevers 42 and 43. 'lhese levers are fulcrumed at 44 and on the members10 and 11 and carry, near their forward ends, pins 46 and 47, .whichproject into the respective paths of lugs 48 and 49, which projectupwardly from the ends of the pusher bars. These lugs are arranged instaggered relation upon each alternate bar on each side ot the slideway.By this mechanism the cutter-carrier 1s swung across the path inalternate directions between successive bags.

While the cutter might be manipulated manually or by suitableconnections to a foot pedal or by other automatic means controlled invarious ways, as, tor example, by the passage ot the bags, l prefer themeans shown, which operates the cutter in pro er relation to the meanswhich spaces the' ags.

@ther means might be used for driving the cutter-wheel, but the meansdisclosed has several advantages. As will be seen, the belt is tightenedby the straightening ot the toggle formed by the carrier 27 and the suport ot the motor, and therefore the belt is tightest at the time thecutter is severing the connection between the bags. Furthermore, thebelt acts as a spring and holds the cutter in inoperative position atone side of the line of bags until it is positively brought intooperation by swinging the carrier, and as soon as the cutter passes thecenter line, the belt swings it up on the other side and out of the pathoit the bags.

The operation ot the device will be sufficiently apparent from the abovedisclosure without further discussion, and it will be apparent also thatmany modifications may be made within the scope of the appended claimswithout departing trom the spirit of the invention.

lt claim:

1. Means tor severing a continuous closure member applied to the top ofsucessive bags, comprising means to convey the bags in spaced relation,a cutter in operative position above the path of the conveyed bags, and`means connected with the conveyor for giving the cutter severing motionalternately in opposite directions between successive bags.

2. lin apparatus for severing connections between a series of articles,means for conveying the articles in succession past a fixed point, asevering device, and means connected with the conveyor for passing thesevering device alternately in opposite directions between successivearticles.

3. ln apparatus for severing an endless member, means to convey such amember, a

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cutter-carrier pivoted above the path ot travel of the member to swingtransversely of said path, a rotatable cutter mounted in said carrrier,a driving pulley vertically above the axis of the carrier, and a beltconnect'ing said driving pulley. to a cutter-operating pulley on thecarrier, the axis of the carrier and theaxes of said pulleys beingsubstantially in line when the cutter is in' contact with said member.

4. In apparatus for severing connections between articles, means toconvey the arti cles in succession past a fixed point, a cuttercarrierpivoted vertically above said point, a rotatable cutter mounted in saidcarrier, a driving pulley vertically above the axis of the carrier, anda belt connecting said pulley to a cutter-operating pulley on thecarrier.

5. In apparatus :for severing an endless member, means to convey such amember, a cutter-carrier pivoted above the path of travel of the memberto swing transversely of said path, a rotatable cutter mounted in saidcarrier, a driving pulley vertically above the axis of the carrier, abelt connect ing said driving pulley to a cutter-operating pulley on thecarrier, and means for swinging the carrier alternately in oppositedirections across the path of the member.

6. In apparatus for severing connection between articles, means toconvey the articles in succession past a Fixed point, a cuttercarrierpivoted above said point, a rotatable cutter mounted in said carrier, adriving pulley vertically above the axis of the carrier, a beltconnecting said pulley to a guard for said wheel, there being roughlytf-shaped notches in opposite sides of the guard, means for moving thecutter and guard alternately in opposite directions across the path ofthe member and in position for the member to enter alternately saidV-shaped notches and to be guided thereby against the cutting edge ofthe wheel. y 4

8. ln severing apparatus, a rotatable cutter, a pivotally mountedcarrier for the cutter adapted to carry the cutter to cutting positionand to idle position, adrive pulley mounted to the side of the axis ofthe carrier away from the cutting position of the cuttcr, and a beltconnecting the drive pulley withthe cutter, the cutting position of thecutter being nearer in line with the axes of the carrier and the pulleythan said idle position.

9. In cutting apparatus, a support for an article to be cut, a drivepulley, a carrier mounted to swing about an axis directly between saidsupport and said pulley, a rotatable cutter mounted in the carrier and abelt connecting said pulley and said cutter.

ln testimony whereof I have hereunto subscribed my name to thisspecication.

ADELMER M. BATES.

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